Activity concentration and dose estimation of 226Ra, 232Th, 40K and 137Cs in drinking water of selected areas of Punjab, Pakistan
| Autor: | Nadeem Yaqoob, Um-e Robab, Azhar Mashiatullah, Maliha Asma, Abdul Ghaffar, Bareera Maryam |
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| Rok vydání: | 2015 |
| Předmět: |
Radionuclide
010501 environmental sciences 01 natural sciences Effective dose (radiation) 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Who recommendations Environmental chemistry Dose estimation Activity concentration Environmental science Nuclide Surface water 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Water Supply. 16:253-262 |
| ISSN: | 1607-0798 1606-9749 |
| DOI: | 10.2166/ws.2015.135 |
| Popis: | Radioactivity of naturally occurring (226Ra, 232Th and 40K) and anthropogenic (137Cs) radioactive nuclides was measured in 29 potable ground and surface water samples of Punjab, Pakistan. The results showed average activity concentrations for 226Ra, 232Th, 40K and 137Cs as 1.09, 0.55, 16.17 and 0.40 Bql−1, respectively. 137Cs was detected in only a few samples. The obtained results showed that, in general, activity concentrations of radionuclides (232Th and 137Cs) in drinking water samples did not exceed WHO recommendations. 226Ra in the majority of samples exceeded WHO drinking water guidelines. The estimated committed effective dose due to intake of the water for three age-groups considered ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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